Cleanup efforts following a mudflow near Glenwood Springs, Colorado in September 1994. Two months earlier, the area upstream from here experienced a wildfire that stripped the slopes of vegetation. An intense rainstorm resulted in a mudflow that covered a portion of Interstate 70, blocking the major traffic route through the Rocky Mountain corridor for a day.

9. Write a paragraph describing the
conditions that cause dangerous mudflows. Include
the types of locations where mudslides are most
likely to occur.

! For further information on mudslides, landslides, and debris flows, examine these fact sheets: